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| 1 | Control techniques of tilt rotor unmanned aerial vehicle systems: A review显示文摘The tilt rotor unmanned aerial vehicle(TRUAV) exhibits special application value due to its unique rotor structure. However, varying dynamics and aerodynamic interference caused by tiltable rotors are great technical challenges and key issues for TRUAV's high-powered flight controls, which have attracted the attention of many researchers. This paper outlines the concept of TRUAV and some typical TRUAV platforms while focusing on control techniques. TRUAV structural features, dynamics modeling, and flight control methods are discussed, and major challenges and corresponding developmental tendencies associated with TRUAV flight control are summarized. | Liu Zhong He Yuqing Yang Liying Han Jianda | 2017 | Chinese Journal of Aeronautics2017，30，1： | 17 |
| 2 | Microstructures and mechanical properties of the third generation automobile steels fabricated by ART-annealing显示文摘The mechanical properties dependence on the microstructure was reviewed and analyzed,and the ultrafine grained duplex microstructure of BCC matrix and large fractioned austenite was given as one of the optimum structures to develop the third generation steel with high strength and high ductility.The medium-Mn steels with different carbon contents processed by austenite reverted transformation(ART-annealing) were studied thoroughly to fabricate the ultrafine duplex steels with large fractioned austenite.The lamellar typed ultrafine structure,the granular typed ultrafine duplex structure and the corresponding mechanical properties of the medium-Mn steels processed by ART-annealing were demonstrated in this paper.It was revealed that the duplex structure with large fraction of austenite and ultrafine grain structure is capable of producing steels with excellent combination of strength and ductility,i.e.,Rm A about 30-50 GPa%,which is about two times of that of the conventional automobile steels and close to that of the TWIP steels.It was concluded that the ART-annealing of the medium-Mn steels would be at least one of the promising ways to fabricate the third generation automobile steels in the near future. | CAO WenQuan WANG Chang WANG CunYu SHI Jie WANG MaoQiu DONG Han WENG YuQing | 2012 | Science China(Technological Sciences)2012，55，7： | 13 |
| 3 | Simple PID Parameter Tuning Method Based on Outputs of the Closed Loop System显示文摘Most of the existing PID parameters tuning methods are only effective with pre-known accurate system models, which often require some strict identification experiments and thus infeasible for many complicated systems. Actually, in most practical engineering applications, it is desirable for the PID tuning scheme to be directly based on the input-output response of the closed-loop system. Thus, a new parameter tuning scheme for PID controllers without explicit mathematical model is developed in this paper. The paper begins with a new frequency domain properties analysis of the PID controller. After that, the definition of characteristic frequency for the PID controller is given in order to study the mathematical relationship between the PID parameters and the open-loop frequency properties of the controlled system. Then, the concepts of M-field and θ-field are introduced, which are then used to explain how the PID control parameters influence the closed-loop frequency-magnitude property and its time responses. Subsequently, the new PID parameter tuning scheme, i.e., a group of tuning rules, is proposed based on the preceding analysis. Finally, both simulations and experiments are conducted, and the results verify the feasibility and validity of the proposed methods. This research proposes a PID parameter tuning method based on outputs of the closed loop system. | HAN Jianda ZHU Zhiqiang JIANG Ziya HE Yuqing | 2016 | Chinese Journal of Mechanical Engineering2016，29，3： | 12 |
| 4 | Third generation high strength low alloy steels with improved toughness显示文摘On-line thermo mechanical controlled processing(TMCP) was conducted to develop the third generation high strength low alloy(HSLA) steel with high toughness economically.The ultra-low carbon content ensured a high level of upper shelf energy while ultrafine lath martensitic structure transformed from super-thin pancaked austenite during controlled rolling and cooling.The reduction of martensite block size decreased ductile-to-brittle transition temperature(DBTT) and compensated the strength loss due to carbon reduction.Consequently,the excellent balance of strength and toughness values was obtained as 950-1060 MPa for yield strength,180 J for Charpy V-notch impact absorbed energy at 30℃,which is much superior to that of traditional martensitic steel.Two mechanisms for the refinement of lath martensite block were proposed:One is the austenite grain refinement in the direction of thickness,and the other is the reduction in the fraction of sub-block boundaries with small misorientation and the increase in the fraction of block boundaries with large misorientation,possibly due to austenite hardening. | SUN XinJun LI ZhaoDong YONG QiLong YANG ZhiGang DONG Han WENG YuQing | 2012 | Science China(Technological Sciences)2012，55，7： | 7 |
| 5 | A draft sequence of the rice (Oryza sativa ssp. indica) genome显示文摘The sequence of the rice genome holds fundamental information for its biology, including physiology, genetics, development, and evolution, as well as information on many beneficial phenotypes of economic significance. Using a 'whole genome shotgun' approach, we have pro-duced a draft rice genome sequence of Oryza sativa ssp. in-dica, the major crop rice subspecies in China and many other regions of Asia. The draft genome sequence is constructed from over 4.3 million successful sequencing traces with an accumulative total length of 2214.9 Mb. The initial assembly of the non-redundant sequences reached 409.76 Mb in length, based on 3.30 million successful sequencing traces with a total length of 1797.4 Mb from an indica variant cultivar 93-11, giving an estimated coverage of 95.29% of the rice genome with an average base accuracy of higher than 99%. The coverage of the draft sequence, the randomness of the sequence distribution, and the consistency of BIG-ASSEM-BLER, a custom-designed software package | YU Jun, HU Songnian, WANG Jun,LI Songgang WONG Ka-Shu Gane, LIU Bin,DENG Yajun, DAI Li, ZHOU Yan,ZHANG Xiuqing, CAO Mengliang, LIU Jing,SUN Jiandong , TANG Jiabin, CHEN Yanjiong,HUANG Xiaobing, LIN Wei, YE Chen, TONG Wei,CONG Lijuan, GENG Jianing, HAN Yujun, LI Lin,LI Wei, HU Guangqiang, HUANG Xiangang,LI Wenjie, LI Jian, LIU Zhanwei, LI Long,LIU Jianping, Ql Qiuhui, LIU Jinsong, LI Li,WANG Xuegang, LU Hong, WU Tingling,ZHU Miao, Nl Peixiang, HAN Hua, DONG Wei,REN Xiaoyu, FENG Xiaoli, GUI Peng,LI Xianran, WANG Hao, XU Xin, ZHAI Wenxue,XU Zhao, ZHANG Jinsong, HE Sijie,ZHANG Jianguo, XU Jichen, ZHANG Kunlin,ZHENG Xianwu, DONG Jianhai, ZENG Wanyong,TAO Lin, CHEN Xuewei, HE Jun, LIU Daofeng,TIAN Wei, TIAN Chaoguang, XIA Hongai,LI Gang, GAO Hui, LI Ping, CHEN Wei ,WANG Xudong, ZHANG Yong, HU Jianfei,WANG Jing, LIU Song, YANG Jian,ZHANG Guangyu, XIONG Yuqing, LI Zhijie,MAO Long, ZHOU Chengshu, ZHU Zhen,CHEN Runsheng, HAO Bailin,ZHENG Weimou, CHEN Shouyi, QUO Wei,LI Guojie, LIU Siqi, HUANG Guyang,TAO Ming, WANG Jian, ZHU Lihuang,YUAN Longping& YANG HuanmingBeijing Genomics Institute/Center of Genomics & Bioinformatics, Chinese Academy of Sciences, Beijing 101300, China Hangzhou Genomics Institute/Institute of Bioinformatics of Zhejiang University/Key Laboratory of Bioinformatics of Zhejiang Province, Hangzhou 310007, China Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China National Hybrid Rice R & D Center, Changsha 410125, China Laboratory of Bioinformatics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China College of Life Sciences, Peking University, Beijing 100871, China Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1Q0080, China Digital China Ltd., Beijing 100080, China Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080, China Medical College, Xi’an Jiaotong University, Xi’an 710061, ChinaThese authors contributed equally to this work.Corresponding author.Corresponden | 2001 | Chinese Science Bulletin2001，46，23： | 6 |
| 6 | A Collision Arbitration Protocol Based on Specific Selection Function显示文摘Fast and effective identifications of a large number of items are required in many Radio-frequency identification(RFID) applications. Simultaneous responses from multiple tags are corrupted by collisions and thus result in low identification efficiency. To address the problem of low identification efficiency, many existing tag anticollision algorithms try to schedule the identification process to avoid collisions. A novel anti-collision scheme based on specific selection function is presented, in which tags pick a slot according to a selection function instead of being randomly assigned to slots within a frame. If collision occurs, the reader sends the custom command SETBM according to the collision information. When probed by the SETBM, the tags apply the selection function to its partial ID and send the mapped result to the reader. According to the mapped result, the reader assigns the time slot to the tags. All tags collided in the same slot will be identified by the tree traversal scheme. Compared to the most of existing anti-collision algorithms, simulation results show that our proposed algorithm can achieve better performance in terms of identification efficiency, time efficiency, and energy consumption. | SU Jian REN Yuqing YANG Ying HAN Yu WEN Guangjun | 2017 | Chinese Journal of Electronics2017，26，4： | 5 |
| 7 | A new modeling scheme for powered parafoil unmanned aerial vehicle platforms: Theory and experiments显示文摘A novel framework is established for accurate modeling of Powered Parafoil Unmanned Aerial Vehicle(PPUAV). The model is developed in the following three steps: obtaining a linear dynamic model, simplifying the model structure, and estimating the model mismatch due to model variance and external disturbance factors. First, a six degree-of-freedom linear model, or the structured model, is obtained through dynamic establishment and linearization. Second, the data correlation analysis is adopted to determine the criterion for proper model complexity and to simplify the structured model. Next, an active model is established, combining the simplified model with the model mismatch estimator. An adapted Kalman filter is utilized for the real-time estimation of states and model mismatch. We finally derive a linear system model while taking into account of model variance and external disturbance. Actual flight tests verify the effectiveness of our active model in different flight scenarios. | Bingbing LI Yuqing HE Jianda HAN Jizhong XIAO | 2019 | Chinese Journal of Aeronautics2019，32，11： | 2 |
| 8 | iTRAQ-Based Proteomics Investigation of Critical Response Proteins in Embryo and Coleoptile During Rice Anaerobic Germination显示文摘Direct-seeding of rice has become popular in recent years due to its low cost and convenience,however,hypoxic condition limits seedling establishment.In this study,weedy rice WR04-6 with high germination ability under anaerobic conditions was used as a gene donor,and we successfully improved the seedling establishment rate of rice cultivar Qishanzhan(QSZ)based on selection of a new rice line R42 from the recombinant inbred line population.R42 inherited high anaerobic germination(AG)ability,and was used for isobaric tags for relative and absolute quantitation(iTRAQ)-based comparative proteomic studies with QSZ to further explore the molecular mechanism of AG.A total of 719 differentially abundant proteins(DAPs)were shared by R42 and QSZ responded to AG,and thus defined as common response DAPs.A total of 300 DAPs that responded to AG were only identified from R42,which were defined as tolerance-specific DAPs.The common response and tolerance-specific DAPs had similar biochemical reaction processes and metabolic pathways in response to anoxic stress,however,they involved different proteins.The tolerance-specific DAPs were involved in amino acid metabolism,starch and sucrose metabolism,tricarboxylic acid cycle pathway,ethylene synthesis pathway,cell wall-associated proteins and activity of active oxygen scavenging enzyme.The in silico protein-protein interactions for the top 60 DAPs indicated that tolerance-specific DAPs had relatively independent protein interaction networks in response to an anoxic environment compared with common response DAPs.The results of physiological indicators showed thatα-amylase and superoxide dismutase activities of R42 were significantly increased under anoxic conditions compared with aerobic conditions.Multiple lines of evidence from western blot,physiological analysis and quantitatDirect seeding of rice has become popular in recent years due to its low cost and convenience,however,hypoxic conditions can limit seedling establishment.In the present study,weedy rice WR04-6 with high germination ability in anaerobic conditions was used as the gene donor and successfully improved the seedling establishment rate of rice cultivar Qishanzhan(QSZ)based on selection of a new rice line R42 from the recombinant inbred line(RIL)population.R42 inherited the had high anaerobic germination(AG)ability,which was used for the isobaric tags for relative and absolute quantitation(iTRAQ)based comparative proteomic studies with QSZ to further explore the molecular mechanism of AG.A total of 719 differentially abundant proteins(DAPs)shared by R42 and QSZ responded to AG and were thus defined as common response DAPs.A total of 300 DAPs that responded to AG were only identified from R42,which were defined as tolerance-specific DAPs.The common response and tolerance-specific DAPs had similar biochemical reaction processes and metabolic pathways in response to anoxic stress,however they involved different proteins.The 300 tolerance-specific DAPs were involved in amino acid metabolism,starch and sucrose metabolism,TCA cycle pathways,ethylene synthesis pathway,cell wall-associated proteins and activity of active oxygen scavenging enzyme.The in silico protein-protein interactions for the top 60 DAPs indicated that tolerance-specific DAPs had relatively independent protein interaction networks in response to an anoxic environment compared with common response DAPs.The results of physiological indicators showed thatα-amylase and SOD activities of R42 were significantly increased under anoxic conditions compared with aerobic conditions.Multiple lines of evidence from western blot,physiological analyses and real-time PCR jointly supported the reliability of proteomics data.In summary,our findings deepened the understanding of the molecular mechanism for the rice response to AG.ive real-time PCR jointly supported the reliability of proteomics data.In summary,our findings deepened the understanding of the molecular mechanism for the rice response to AG. | Zhang Guangchen Liu Zimeng Liu Yoxihong Kuya Noriyuki HuAYuchen Shi Hongru Zhao Weilin Han Yuqing Yamamoto Toshio Chen Wenfu Sun Jian | 2021 | Rice science2021，28，4： | 2 |
| 9 | Preparation and Evaluation of Electrospun Zein/HA Fibers Based on Two Methods of Adding HA Nanoparticles显示文摘 | Mei Zhang Yongjia Liu Yuqing Jia Hongshuang Han Dahui Sun | 2014 | Journal of Bionic Engineering2014，11，1： | 2 |
| 10 | Recent understanding of solid-liquid friction in ionic liquids显示文摘Ionic liquids(ILs)-solid interfacial phenomenon is undoubtedly one of the topic issues in energy related fields,especially bringing great challenges in the development of chemical engineering.Solid-ILs friction under microscale shows outstanding properties such as widely studied electro-controllability by surface potential or electric field,and promising performance of superlubricity.Vast applications,such as boundary lubrication and supercapacitors,have been benefiting from these studies.In this review,we summarized the recent advances of the measurements of solid-ILs friction,and focused on the microscale and fascinating findings.A brief tutorial for this topic,containing both experimental and theoretical methods,was also provided.It was anticipated that this review would help researchers grasp the emerging field and stimulate the advance of new ideas and methods in ILs on solids. | Yuqing He Han Li Cangyu Qu Wei Cao Ming Ma | 2021 | Green Chemical Engineering2021，2，2： | 2 |
| 11 | 3UVH2 and SUVH9 Couple Two Essential Steps For Transcriptional Gene Silencing in Arabidopsis显示文摘在 Arabidopsis,一条指导 RNA 的 DNA methylation 小径(RdDM ) 为 DNA methylation 的 de novo 建立负责并且贡献 transcriptional 基因 silencing。最近, microrchidia (MORC ) 类型 ATPases 被显示在由调整高顺序的染色质建筑学的形成强制基因和 transposons 的一个子集的 transcriptional 基因 silencing 起必要作用。然而, MORC 蛋白质怎么与 RdDM 小径部件合作调整基因表示,仍然保持大部分不清楚。在这研究, SUVH9 和 MORC6 从一屏蔽 idm1 的 suppressors 被识别,它是在活跃 DNA demethylation 的一个变异的有缺陷者。没有提高 DNA methylation 层次, SUVH9 和 MORC6 为二记者基因和一些内长的基因的 silencing 被要求。SUVH9,苏(增值商) 3-9 相当或相同的事物之一在 RdDM 包含了,直接与 MORC6 和它的二个靠近的相当或相同的事物交往, MORC1 和 MORC2。类似于 MORC6, SUVH9 和它的相当或相同的事物 SUVH2 在 SDC 和 Solo-LTR loci 为 heterochromatin 冷凝作用和 3D 染色质建筑学的形成被要求。我们建议 SUVH2 和 SUVH9 绑在 methylated DNA 并且与 MORC 蛋白质联合便于改变染色质的建筑群的招募到目标 loci。 | Yuqing Jing Han Sun Wei Yuan Yue Wang Qi Li Yannan Liu Yan Li Weiqiang Qian | 2016 | Molecular Plant2016，9，8： | 2 |
| 12 | High-cycle Fatigue Fracture Behavior of Ultrahigh Strength Steels显示文摘<正>The fatigue fracture behavior of four ultrahigh strength steels with different melting processes and therefore different inclusion sizes were studied by using a rotating bar two-point bending fatigue machine in the high-cycle regime up to 10~7 cycles of loading.The fracture surfaces were observed by field emission scanning electron microscopy(FESEM).It was found that the size of inclusion has significant effect on the fatigue behavior. For AISI 4340 steel in which the inclusion size is smaller than 5.5μm,all the fatigue cracks except one did not initiated from inclusion but from specimen surface and conventional S-N curve exists.For 65Si2MnWE and Aermet 100 steels in which the average inclusion sizes are 12.2 and 14.9μm,respectively,fatigue cracks initiated from inclusions at lower stress amplitudes and stepwise S-N curves were observed.The S-N curve displays a continuous decline and fatigue failures originated from large oxide inclusion for 60Si2CrVA steel in which the average inclusion size is 44.4μm.In the case of internal inclusion-induced fractures at cycles beyond about 1×10~6 for 65Si2MnWE and 60Si2CrVA steels,inclusion was always found inside the fish-eye and a granular bright facet(GBF)was observed in the vicinity around the inclusion.The GBF sizes increase with increasing the number of cycles to failure N_f in the long-life regime.The values of stress intensity factor range at crack initiation site for the GBF are almost constant with N_f,and are almost equal to that for the surface inclusion and the internal inclusion at cycles lower than about 1×10~6.Neither fish-eye nor GBF was observed for Aermet 100 steel in the present study. | Weijun HUI Yihong NIE Han DONG Yuqing WENG Chunxu WANG | 2008 | Journal of Materials Science & Technology2008，24，5： | 2 |
| 13 | Special interstitial route can transport nanoparticles to the brain bypassing the blood-brain barrier显示文摘Nowadays,nanoparticles(NPs)are considered to be ideal tools for bioimaging and drug delivery.Although increasing research has focused on NP biodistribution,transportation in the interstitial architecture has been neglected.The entire body is connected by the interstitial architecture,which can provide a long-range and direct pathway for NP biodistribution in a nonvascular system.In this study,we report that 10-nm gold NPs injected directly into the interstitial architecture of the tarsal tunnel of rats(intervaginal space injection(ISI))were delivered to the brain without crossing the blood-brain barrier.Furthermore,NaGdF4 nanoparticles were used to explore the transportation route by magnetic resonance imaging.The results demonstrated that,after ISI,the NaGdF4 nanoparticles were transported through the perivascular interstitial space of the carotid arteries and brain vessels to the brain.This is a special nonvascular transportation route like a stream based on the interstitial architecture that provides an alternative pathway for NP biodistribution. | Nan Hu Xiaoli Shi Qiang Zhang Wentao Liu Yuting Zhu Yuqing Wang Yi Hou Yinglu Ji Yupeng Cao Qian Zeng Zhuo Ao Quanmei Sun Xiaohan Zhou Xiaochun Wu Dong Han | 2019 | Nano Research2019，12，11： | 2 |
| 14 | Seismic Attribute Analysis with Saliency Detection in Fractional Fourier Transform Domain显示文摘Most image saliency detection models are dependent on prior knowledge and demand high computational cost. However, spectral residual(SR) and phase spectrum of the Fourier transform(PFT) models are simple and fast saliency detection approaches based on two-dimensional Fourier transform without the prior knowledge. For seismic data, the geological structure of the underground rock formation changes more obviously in the time direction. Therefore, one-dimensional Fourier transform is more suitable for seismic saliency detection. Fractional Fourier transform(FrFT) is an improved algorithm for Fourier transform, therefore we propose the seismic SR and PFT models in one-dimensional FrF T domain to obtain more detailed saliency maps. These two models use the amplitude and phase information in FrFT domain to construct the corresponding saliency maps in spatial domain. By means of these two models, several saliency maps at different fractional orders can be obtained for seismic attribute analysis. These saliency maps can characterize the detailed features and highlight the object areas, which is more conducive to determine the location of reservoirs. The performance of the proposed method is assessed on both simulated and real seismic data. The results indicate that our method is effective and convenient for seismic attribute extraction with good noise immunity. | Yuqing Wang Zhenming Peng Yan Han Yanmin He | 2018 | Journal of Earth Science2018，29，6： | 2 |
| 15 | Chinese Herbal Formula Xiao Yao San for Treatment of Depression: A Systematic Review of Randomized Controlled Trials显示文摘 | Yuqing Zhang Mei Han Zhijun Liu Jie Wang Qingyong He Jianping Liu Jenny M. Wilkinson | 2011 | Evidence-Based Complementary and Alternative Medicine2011，，： | 1 |
| 16 | Equivalent efficacy assessment of QL1101 and bevacizumab in nonsquamous non-small cell lung cancer patients:A two-year follow-up data update显示文摘Objective: Anti-vascular endothelial growth factor(VEGF) monoclonal antibodies are an effective means of treating non-small cell lung cancer(NSCLC). Here, we aim to update the equivalent efficacy assessment between QL1101 and bevacizumab based on two-year follow-up data.Methods: In total, 535 eligible NSCLC patients were enrolled in this randomized controlled trial. Patients were randomly assigned 1:1 to the QL1101 group and the bevacizumab group. The full end time of this study was defined as 24 months after the last enrolled patient was randomized. The primary endpoint was the objective response rate(ORR);equivalence was confirmed if the two-sided 90% confidence interval(90% CI) of the relative risk was within the range of 0.75-1.33. The secondary endpoints were progression-free survival(PFS) and overall survival(OS).Results: The two-year updated data showed similar ORR(QL1101 vs. bevacizumab: 53.1% vs. 54.3%;relative risk=0.977;90% CI: 0.838-1.144), PFS(235 d vs. 254 d, log-rank P=0.311), and OS(577 d vs. 641 d, log-rank P=0.099) results between the QL1101 group and the bevacizumab group. The mean shrinkage ratio of targeted lesions was also similar between the QL1101 group and the bevacizumab group(22.5% vs. 23.5%). For patients who received QL1101 maintenance therapy, similar results were shown between the QL1101 group(n=157) and the bevacizumab group(n=148)(PFS: 253 d vs. 272 d, log-rank P=0.387;OS: 673 d vs. 790 d, log-rank P=0.101;mean tumor shrinkage rate: 26.6% vs. 27.5%).Conclusions: This study reported that QL1101 had similar efficacy in treating nonsquamous NSCLC in terms of ORR, PFS and OS based on two-year updated data, providing a basis for the clinical application of QL1101. | Jun Lu Tianqing Chu Hongyu Liu Minjuan Hu Yuqing Lou Yanwei Zhang Zhiqiang Gao Wei Zhang Xueyan Zhang Huimin Wang Hua Zhong Baohui Han | 2022 | Chinese Journal of Cancer Research2022，34，1： | 1 |
| 17 | Ausforming effects on anisotropy of mechanical properties in HSLA martensitic steel显示文摘In order to clarify effects of prior pancaked austenitic structure on microstructure and mechanical properties of transformed martensite in ausformed steel,a super-thin pancaked austenite was processed by multi-pass rolling in a 0.03-2.6Mn0.06Nb-0.01Ti(wt%) low alloy steel.The evolution of prior pancaked austenite grain during multi-pass rolling was studied using Ni-30Fe model alloy.Related with the structure and texture in the prior super-thin pancaked austenite in Ni-30Fe alloy,the texture and anisotropy of mechanical properties of transformed martensite in the studied ausformed steel were focused on.There were mainly three kinds of rolling texture components in the super-thin pancaked austenite:Goss {110} 001,copper {112} 111 and brass {110} 112.They were further transformed into the weak {001} 110 and strong {112} 110,{111} 112 texture components in the martensitic structure.The orientation relationship(OR) of lath martensite transformation from pancaked austenite in the ausformed steel deviated larger from the exact Kurdjumov-Sachs(K-S) OR than in the case of equiaxed austenite without deformation.The tensile and yield strengths of the ausformed martensitic steel first decreased and then increased as the angle between tension direction and rolling direction increased.The main reason for the anisotropy of strength was considered as the texture component {112} 110 in martensite.However,the anisotropy of impact toughness was more complex and the main reasons for it are unknown. | LI ZhaoDong SUN XinJun CAO WenQuan YONG QiLong YANG ZhiGang DONG Han WENG YuQing | 2012 | Science China(Technological Sciences)2012，55，7： | 1 |
| 18 | Active model-based nonlinear system identification of quad tilt-rotor UAV with flight experiments显示文摘To propose an accurate and less complex model of a special unmanned aerial vehicle(UAV),namely tilt-rotor UAV(TRUAV), this study identifies the active model-based nonlinear system of a quadTRUAV. First, a nominal nonlinear model of the vehicle is formulated. Some unstructured nonlinearities are ignored to reduce the complexity of the model. Then, due to the unstable dynamics of the open-loop system,the format of this nominal model is considered to design an innovative smooth-switch attitude control via interconnection and damping assignment passivity-based control(IDA-PBC). Active model-based nonlinear system identification is studied for the vehicle with the designed control method and flight experiments.The model error vector is defined and estimated by the unscented Kalman filter(UKF) to improve the accuracy of the model. The main contribution of this paper is to identify the nominal nonlinear model and to develop an active model method of the quad-TRUAV. The attitude control method with an innovative smooth-switch structure is another contribution to flight experiments. Numerical results are displayed to present the experimental results and effectiveness of the proposed nonlinear models. | Zhong LIU Didier THEILLIOL Yuqing HE Feng GU Liying YANG Jianda HAN | 2022 | Science China(Information Sciences)2022，65，8： | 1 |
| 19 | Immunosenescence:molecular mechanisms and diseases显示文摘Infection susceptibility,poor vaccination efficacy,age-related disease onset,and neoplasms are linked to innate and adaptive immune dysfunction that accompanies aging(known as immunosenescence).During aging,organisms tend to develop a characteristic inflammatory state that expresses high levels of pro-inflammatory markers,termed inflammaging.This chronic inflammation is a typical phenomenon linked to immunosenescence and it is considered the major risk factor for age-related diseases.Thymic involution,naïve/memory cell ratio imbalance,dysregulated metabolism,and epigenetic alterations are striking features of immunosenescence.Disturbed T-cell pools and chronic antigen stimulation mediate premature senescence of immune cells,and senescent immune cells develop a proinflammatory senescence-associated secretory phenotype that exacerbates inflammaging.Although the underlying molecular mechanisms remain to be addressed,it is well documented that senescent T cells and inflammaging might be major driving forces in immunosenescence.Potential counteractive measures will be discussed,including intervention of cellular senescence and metabolic-epigenetic axes to mitigate immunosenescence.In recent years,immunosenescence has attracted increasing attention for its role in tumor development.As a result of the limited participation of elderly patients,the impact of immunosenescence on cancer immunotherapy is unclear.Despite some surprising results from clinical trials and drugs,it is necessary to investigate the role of immunosenescence in cancer and other age-related diseases. | Zaoqu Liu Qimeng Liang Yuqing Ren Chunguang Guo Xiaoyong Ge Libo Wang Quan Cheng Peng Luo Yi Zhang Xinwei Han | 2023 | Signal Transduction and Targeted Therapy2023，8，6： | 1 |
| 20 | Stretchable and Superhydrophilic Polyaniline/Halloysite Decorated Nanofiber Composite Evaporator for High Efficiency Seawater Desalination显示文摘Here,authors report on composition of a stretchable,mechanically durable and superhydrophilic polyaniline(PANI)/hal-loysite nanotubes(HNTs)decorated PU nanofiber(PANI/HNTs@PU).The polymer nanofibers are placed as the core and PANI/HNTs makes the shell section.The PANI/HNTs creates a membrane with outstanding light absorption and photo-thermal conversion performance.The strong solar absorption capability and superhydrophilicity of the PANI/HNTs@PU remain almost unchanged during stretching,abrasion,and ultrasonic washing tests,exhibiting superior surface stability and durability.When the PANI/HNTs@PU is used for the interfacial evaporation,the evaporation rate and efficiency reach as high as 1.61 kg m^(-2) h^(-1) and 94.7%,respectively.No salt precipitation is observed on the solar absorber surface even under a high salinity or during the long term or cyclic evaporation test.Furthermore,the excellent interfacial evaporation function is maintained when the nanofiber composite is mechanically stretched.The PANI/HNTs@PU based evaporation device shows promising applications in high performance solar desalination. | Jiang Han Wenqian Xing Jun Yan Jing Wen Yuntao Liu Yuqing Wang Zefeng Wu Longcheng Tang Jiefeng Gao | 2022 | Advanced Fiber Materials2022，4，5： | 1 |
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